korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-15 16:24:13 +08:00
Code Issues Packages Projects Releases Wiki Activity

ide: config_drive_for_dma() fixes

Browse Source 
* Add DMA blacklist checking (->ide_dma_on check probably can go now).

* Add ->atapi_dma flag checking and remove no longer needed
  ns87415_ide_dma_check() from ns87415 host driver.

* Remove now needless __ide_dma_check() wrapper and symbol export.

* Check drive->autodma instead of hwif->autodma (there should be no changes in
  behavior as all users of config_drive_for_dma() set both ->autodma flags).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2007-08-20 22:42:55 +02:00
parent 8292e8c7e4
commit 1116fae5fd
3 changed files with 10 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/ide/ide-dma.c
View File

@ -349,9 +349,17 @@ EXPORT_SYMBOL_GPL(ide_destroy_dmatable);
static int config_drive_for_dma (ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
struct hd_driveid *id = drive->id;
if ((id->capability & 1) && drive->hwif->autodma) {
/* consult the list of known "bad" drives */
if (__ide_dma_bad_drive(drive))
return -1;
if (drive->media != ide_disk && hwif->atapi_dma == 0)
return -1;
if ((id->capability & 1) && drive->autodma) {
/*
* Enable DMA on any drive that has
* UltraDMA (mode 0/1/2/3/4/5/6) enabled
@ -513,20 +521,6 @@ int __ide_dma_on (ide_drive_t *drive)
EXPORT_SYMBOL(__ide_dma_on);
/**
* __ide_dma_check - check DMA setup
* @drive: drive to check
*
* Don't use - due for extermination
*/
int __ide_dma_check (ide_drive_t *drive)
{
return config_drive_for_dma(drive);
}
EXPORT_SYMBOL(__ide_dma_check);
/**
* ide_dma_setup - begin a DMA phase
* @drive: target device
@ -1021,7 +1015,7 @@ void ide_setup_dma (ide_hwif_t *hwif, unsigned long dma_base, unsigned int num_p
if (!hwif->dma_host_on)
hwif->dma_host_on = &ide_dma_host_on;
if (!hwif->ide_dma_check)
hwif->ide_dma_check = &__ide_dma_check;
hwif->ide_dma_check = &config_drive_for_dma;
if (!hwif->dma_setup)
hwif->dma_setup = &ide_dma_setup;
if (!hwif->dma_exec_cmd)

9
drivers/ide/pci/ns87415.c
View File

@ -187,14 +187,6 @@ static int ns87415_ide_dma_setup(ide_drive_t *drive)
return 1;
}
static int ns87415_ide_dma_check (ide_drive_t *drive)
{
if (drive->media != ide_disk)
return -1;
return __ide_dma_check(drive);
}
static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif)
{
struct pci_dev *dev = hwif->pci_dev;
@ -266,7 +258,6 @@ static void __devinit init_hwif_ns87415 (ide_hwif_t *hwif)
outb(0x60, hwif->dma_status);
hwif->dma_setup = &ns87415_ide_dma_setup;
hwif->ide_dma_check = &ns87415_ide_dma_check;
hwif->ide_dma_end = &ns87415_ide_dma_end;
if (!noautodma)

1
include/linux/ide.h
View File

@ -1312,7 +1312,6 @@ void ide_dma_host_off(ide_drive_t *);
void ide_dma_off_quietly(ide_drive_t *);
void ide_dma_host_on(ide_drive_t *);
extern int __ide_dma_on(ide_drive_t *);
extern int __ide_dma_check(ide_drive_t *);
extern int ide_dma_setup(ide_drive_t *);
extern void ide_dma_start(ide_drive_t *);
extern int __ide_dma_end(ide_drive_t *);